# Chang-Wu Chen | L2 History

- Channel: [Taipei Ethereum Meetup](https://streameth.org/taipei-ethereum-meetup)
- Date: 2021-10-09
- Duration: 50:00
- Topics: ethereum
- Watch: https://streameth.org/watch/yt-2HdYOs9QekM
- YouTube: https://www.youtube.com/watch?v=2HdYOs9QekM

## Description

Speaker intro
Dr Chang-Wu Chen
Chang-Wu is the head of imToken Labs. He also serves as an adjunct assistant professor at the Department of Computer Science, National Chengchi University, focusing on teaching Ethereum. Chang-Wu’s Twitter: https://twitter.com/changwu_tw imToken: https://www.token.im/


Talk description
"L2 History"
In this talk, he will walk through the history and evolution of Ethereum Layer 2 solutions, then discuss the status quo of Ethereum and the pros and cons of Layer 2 solutions. At last, he will share his insight on the L2 future.